Appreciate the elbow room you have today because this place is about to get more jam-packed than ever. For the last century, humanity has been crowd surfing a tsunami and on Tuesday, we’ll pass a significant milestone: Eight Billion People. The world, in short, is full of it. There are more of us. We’re getting older. And, in relative terms, things may peak soon. Casey Briggs of the Australian Broadcasting Corporation with a really interesting look at what we’ve become and what’s next: 8 billion and counting. “This week, the world’s population ticks over a historic milestone. But in the next century, society will be reshaped dramatically — and soon we’ll hit a decline we’ll never reverse.” But that’s not happening for a while. (In the meantime, are we effing the future by effing so much?)